A balloon drifts 140 m toward the west in 45 s; then the wind suddenly changes and the balloon flies 90 m toward the east in the next 25 s.
j. what was its average velocity during the first 45 s?
k. what was its average velocity during the next 25 s?
l. what was its average velocity for the entire trip?

The unit of the slope is m/s

Given that y = 0.098x + 0.01

According to slope formula, y = mx + c

Slope, m = 0.098

Slope of the line is equal to the velocity of the object in a distance-time graph. Unit of velocity is m/s.

Therefore, the unit of the slope is m/s

To know more about distance-time graph

https://brainly.com/question/1378025

#SPJ4

The enterprise must slow down to [tex]-2.5 km/s^{2}[/tex] to avoid a collision.

Average velocity is defined as the difference between the change in position or displacement (x) and the time intervals (t) during which the displacement occurs. The average velocity may be positive or negative depending on the displacement's direction. The unit of measure for average velocity in the SI is meters per second (m/s or m[tex]s^{-1}[/tex]).

Only when acceleration is constant and motion is on a straight line can the equations of kinematics be used.

Let us assume that,

A = Starship enterprise

B = Klingon ship

Considering that the starship enterprise slows down steadily, the following would be the average velocity:

[tex]v_{a}__{i}[/tex] =( [tex]v_{a}__{i}[/tex] + [tex]v_{a}__{f}[/tex] )/2

where [tex]v_{a}__{f}[/tex] = 0 since it must come to a stop

[tex]v_{a}[/tex] = (50 + 0)/2

[tex]v_{a}[/tex] = 25 km/s

As a result, A must travel 100 km in addition to the distance B travels during that period before coming to a stop:

[tex]d_{A}[/tex] = [tex]d_{B}[/tex] + 100

25t = 20t + 100

5t = 100

So,

[tex]d_{A}[/tex] = 25t

[tex]d_{A}[/tex] = 25(20)

[tex]d_{A}[/tex] = 500 km

and

[tex]d_{A}[/tex] = [tex]v_{a}__{i}[/tex] × t + [tex]\frac{1}{2} a t^2[/tex]

500 = 50(20) + [tex]\frac{1}{2} a(20)^2[/tex]

a = [tex]-2.5 km/s^2[/tex]

Therefore, the enterprise must slow down to [tex]-2.5 km/s^{2}[/tex] to avoid a collision.

To know more about equations of kinematics visit:

https://brainly.com/question/14355103

#SPJ4

The complete question is: "The starship enterprise returns from warp drive to ordinary space with a forward speed of 50 km/s. to the crew’s great surprise, a Klingon ship is 100 km directly ahead, traveling in the same direction at a mere 20 km/s. without evasive action, the enterprise will overtake and collide with the Klingons in just slightly over 3.0 s. the enterprise’s computers react instantly to brake the ship. what magnitude acceleration does the enterprise need to just barely avoid a collision with the Klingon ship? assume the acceleration is constant."

A sled sliding down the hill will have more Kinetic energy than a sled resting at the top of a hill.

We know that,

Kinetic Energy KE = [tex]1/2 mv^{2}[/tex]

A sled resting at the top of a hill will have zero velocity.

KE of a sled resting at the top of a hill = 0

Kinetic Energy is the energy of motion which is directly proportional to the velocity of the object.

Therefore Kinetic energy of a sled sliding down the hill is more than that of a sled resting at the top of a hill.

To know more about Kinetic energy

https://brainly.com/question/12669551

#SPJ4

In the system, kinetic energy from the moving water of the faucet turns the turbine. The Mechanical energy of the spinning turbine generates Electrical energy which is transformed into Thermal energy that causes the temperature of the water to increase. The water then becomes steam and gives off more Thermal energy into the atmosphere.

The mechanical energy spend on the turbine to spin would generate electrical energy. This electrical energy then converts the moving electric charge into thermal or heat energy. The heat would convert water to steam.

To know more about Thermal energy

https://brainly.com/question/19838431

#SPJ1

Answer: A radio wave is generated by a transmitter and then detected by a receiver. An antenna allows a radio transmitter to send energy into space and a receiver to pick up energy from space. Transmitters and receivers are typically designed to operate over a limited range of frequencies.

Explanation:

A jetliner goes from rest to a takeoff speed of 183 mi/h in 36.1 s.

the magnitude of its average acceleration is 81.80

Take off speed of the jetliner = 183 mi/h

so time taken = 36.1s

average acceleration = change in velocity / time taken

= (183 x 1609.3)/ 3600

= 81.80 m/[tex]s^{2}[/tex]

The rate at which an object’s velocity changes is measured as its acceleration. Since it is a vector, speed and direction are also included. In the SI, acceleration is measured in meters per second squared (m s 2).

An object’s velocity is how quickly it is travelling in a specific direction. A vector, that is. In the SI, velocity is measured in meters per second (m s).

To know more about acceleration visit:

https://brainly.com/question/12550364

#SPJ4

There are nineteen gym lockers that would have the digit "seven" on them.

In this problem, we need to know the number of gym lockers that would have the number 7 attached to them either as tens or digit as the lockers are numbered from one to ninety nine.

Let us now proceed which lockers would have the digit "seven" on them;

7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97. We can see that there are nineteen gym lockers that would have the digit "seven" on them.

Learn more about digits:https://brainly.com/question/28458348

#SPJ1

The correct option is (b) 5n

A result, the object is being acted upon by a net downward force of 5N.

The force that is produced by summing the vector sums of all the forces acting on an object is known as the resultant force. The effect of the resulting force is the same as the sum of all the acting forces operating on the object. The direction of the forces must be considered when calculating the resulting force.

The northward force is Fn = 10N, given.

Fs = 15N is the southern force.

The net force on the phone is Fnet =?N, which is necessary.

Downward pressure is applied by the object's weight, and upward pressure is applied by upward resistance. The vector sum of these two forces will represent the net force.

Fnet = Fs - Fn (Considering the direction downward as positive)

Fnet = 15N - 10N

Fnet = 5N

There is a net downward force of 5 N acting on the object as a result.

Learn more about the Force with the help of the given link:

brainly.com/question/7362815

#SPJ4

Cepheids cataclysmic variables object is the period-luminosity relation used for determining distances.

Cepheid Variables are very bright stars that are 500–300,000 times as bright as the sun. They undergo brief variations every 1–100 days. They are pulsing variables that follow a predetermined pattern and experience rapid expansion and contraction. Other pulsating variables include RR Lyrae stars, which are short period, older stars that are not as massive as Cepheids; and RV Tauri stars, which are super giants with higher light fluctuations. Astronomers may study the variability of a Cepheid's brightness to determine its distance.

To know more about Cepheids cataclysmic variables, visit;

https://brainly.com/question/14019330

#SPJ4

Mass of substance is 0.6324 kg

Given:

volume = V = 680ml = 0.68 L

density = D = 0.930

To Find:

mass in kg

Solution: mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force.

Density = mass/volume

mass = Density x Volume = 0.93 x 680

Mass = 0.6324 kg

Hence, the mass of substance is 0.6324 kg

Learn more about Mass here:

https://brainly.com/question/26150306

#SPJ4

The number of calories that you can eat a day without gaining weight depends on your activity level

For there to be a balance between the number of calories consumed through food and weight gain, it is important to maintain a good level of physical activity that helps us to maintain a healthy weight and at the same time does not allow an increase in weight and body mass.

All this is because the relationship between daily calories consumed and weight gain is directly proportional to the level of physical activity that we do.

It is the amount of mass associated with a person's body

Learn more about body mass at: brainly.com/question/10091149

#SPJ4

The range of each Amazon box is determined as 1.59 m.

The time of motion of the amazon box is calculated as follows;

h = vt + ¹/₂gt²

where;

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 1.4/9.8)

t = 0.53 second

The horizontal distance traveled by the amazon box is known as the range and it is calculated as follows;

R = Vₓt

where;

R = 3 m/s x 0.53 s

R = 1.59 m

Thus, the range of each Amazon box is determined as 1.59 m.

Learn more about range of projectile here: https://brainly.com/question/12870645

#SPJ1

Yes, if my friend moved from Chicago to Buenos Aires, Argentina and said that she has observed constellations that cannot be seen in Chicago, because, two stars in same constellation may be actually very far away from each other.

Constellations are the groups of stars. The constellations you can see at night depend on your location on the Earth and the time of year. Constellations were named after objects, animals, & people long ago. Astronomers today still use the constellations to name stars and meteor showers. A constellation is group of stars that looks like a particular shape in the sky and has been given a name. These stars are far away from the Earth and they are not connected to each other at all. Some stars in a constellation might be close while others are very much far away. But, if you were to draw lines in the sky between the stars like a dot-to-dot puzzle – and use lots of imagination – picture would look like an object, animal, or person.

constellation, in astronomy, any of certain groupings of stars that were imagined—at least by those who named them—to form conspicuous configurations of the objects or creatures in the sky. Constellations are useful in assisting the astronomers and navigators to locate certain stars.

Certain constellations can only be seen in Northern Hemisphere but disappear in Southern Hemisphere, the vice-versa is true as well. The Earth is a globe because constellations appear to shift and disappear due to spherical curvature of the Earth.

To know more about astronomy visit: https://brainly.com/question/5165144

#SPJ4

The kinetic energy of the helium nucleus will be 4.98 x 10⁻¹³ J

Kinetic energy can be define as , that it is a form of energy that an object or a particle is cause of its motion. Its unit is joule  i.e. j & it is given as,

K.E. = 1/2 mv²

where , m is mass of the particle and v is the velocity of the particle .

Energy can be expressed as, the ability to perform work. Energy can neither be created nor destroyed, but it can only be transformed from one form to another. The unit of energy is  joule .

Mass of helium nucleus = m = 6.64 x 10⁻²⁷ kg

Speed of light = c = 3 x 10⁸ m/s

Speed of light at 5.00% = c = 5.00/100x 3 x 10⁸ m/s = 1.5 x 10⁷ m/s

The kinetic energy of the helium nucleus can be given as ,

K.E = ¹/₂mc²

K.E = ¹/₂ x (6.64 x 10⁻²⁷) x (1. 5 x 10⁷)²

K.E =  4.98 x 10⁻¹³ J

Therefore, the kinetic energy of the helium nucleus is 4.98  x 10⁻¹³ J

To know more about kinetic energy

https://brainly.com/question/14576794

#SPJ4

The magnitude of a velocity vector that had x- and y-components of 36 m/s and 48 m/s, respectively is 60 m/s. Thus, the correct option for this question is B.

The term magnitude may be characterized as the distance or quantity. The magnitude can be significantly utilized in order to describe the comparison of speeds. This term can remarkably be used to demonstrate the distance traveled by an object or to illustrate the amount of an object in terms of its magnitude.

The magnitude of the velocity vector may be defined as the total value which is the square root of the value. The magnitude of the vector can be, |a| = √ ( x² + y² ).

Now, substituting the values of x component and y component given, = √ ( 36² + 48² ) = √ ( 1296 + 2304) = √ 3600 = 60 m/s.

Therefore, the magnitude of a velocity vector is found to be 60 m/s. Hence, Option B is the correct answer.

Learn more about the Magnitude,

https://brainly.com/question/14452091

#SPJ1

Whenever you wish to bring an object into focus under high power, the correct order of steps are as listed below:

A microscope can be defined as an optical device that is typically designed and developed to produce a magnified (an enlarged) image of a minute (very tiny) object, so as to show all the littlest and tiniest details about the object which cannot be seen by the natural human eye.

In Science, there are different types of microscope used for magnifying an object and these include the following:

In conclusion, you should use the coarse focus adjustment to focus the specimen on low power and then, ensure that fine focus is readjusted under high power in order to produce the sharpest image of this specimen.

Read more on focus under high power here: https://brainly.com/question/10895172

#SPJ1

Complete Question:

Indicate the correct order of steps as you bring an object into focus under high power. Rank the options below.

Place slide on stage and secure with stage clips.

Focus specimen on low power using coarse focus adjustment.

Use fine focus to sharpen the image under low power.

Readjust fine focus under high power to produce the sharpest image.

Rotate high power lens into position.

Turn on the light and center the specimen over the light source.

Answer:

R = V^2 sin 2 θ / g        range formula

R is a maximum for θ = 45 and R = V^2  g

g = V^2 / R = 3^2 / 15 = .6 m/s^2

Astronomers typically use filters that exclusively transmit light from a specific narrow band of wavelengths to measure a star's apparent brightness in order to determine the precise color of a star (colors).

Around 0.001 magnitude of starlight may be measured with accuracy by photoelectric photometers. The method of surface photometry, which gauges apparent magnitude in magnitudes per square arcsecond, can also be applied to extended objects like planets, comets, nebulae, and galaxies. The varied hues are caused by the light's estimated blackbody radiation, which is more sensitive to the star's temperature than to the specifics of its composition. As a result, astronomers can gauge a star's surface temperature by observing its hue.

Learn more about Photoelectric here-

https://brainly.com/question/9260704

#SPJ4

Five particles are shot from the left into a region that contains a uniform electric field.  A negatively charged particle with a charge –3q follows path 2 while it moves through this field. The electric field point towards the bottom of the page.

An electric field is a physical field around a charged particle or object which has the ability to surround electrically charged particles and exerts force on all other charged particles that are present in the field.

This force exerted upon them is either attracting or repelling them. This electric field also refers to as the physical field for a system of charged particles.

To know more about electric fields, visit:

https://brainly.com/question/15800304

#SPJ4

The difference between a scalar quantity and a vector quantity can be found below.

A scalar quantity is a quantity that has magnitude but not direction.

On the other hand, a vector quantity is a quantity with both magnitude and direction.

Examples of scalar quantities are;

Examples of vector quantities are;

Learn more about vector and scalar quantity at: https://brainly.com/question/3482586

#SPJ1

For a fixed (constant) rate of heat transfer in one-direction a material with a very large thermal conductivity will have small relative size temperature gradient.

What is thermal conductivity?

Learn more about the Thermal conductivity with the help of the given link:

https://brainly.com/question/7643131

#SPJ4

An ethical dilemma​ describes a conflict between two morally correct courses of action.

Being able to reason effectively and logically about what to believe or do is known as critical thinking. It comprises the capacity for independent and thoughtful thought. These are some examples of what someone with critical thinking abilities can do:

The ability to think clearly and rationally is crucial whatever we choose to undertake. It should go without saying that critical thinking is crucial if you work in the fields of education, research, business, law, or management.

Learn more about ethical dilemma:

https://brainly.com/question/14864299

#SPJ4

Answer:

-2.33 m/s^2

Explanation:

initial speed u = 7m/s

final speed v= 3s

acceleration a = (v-u)/t

a= -7/3= -2.33 meter per second square.

The correct toption is (C) 13

The neutral atom of aluminum possess 13 protons.

Learn more about the quantum mechanics with the help of the given link:

https://brainly.com/question/23857980

#SPJ4

Autotransformers are especially practical if the difference between the primary and secondary voltages is realtively small.

Learn more about the Autotransformer with the help of the given link:

https://brainly.com/question/28343269

#SPJ4

Gay Lussac's Law states that when a gas is held at a fixed volume, its pressure is exactly proportional to its Kelvin temperature. The molecules of a gas receive more energy when heated, causing them to move more quickly. This results in increased pressure and more impacts on the container's walls.

Pressure is the term used to describe the physical force exerted on an object. A perpendicular force is applied to the surfaces of the objects per unit area. F/A is the fundamental formula for pressure (Force per unit area)

This is based on the supposition that the force is applied perpendicular to the surface area. The pressure would rise proportionately if you exerted the same amount of force over a larger surface area. 5 Pa would be the force of 5 N applied over the same area of 1 square meter.

To learn more about pressure, visit:

https://brainly.com/question/26338396

#SPJ4

When a hydrogen atom forms a covalent link with an N, O, or F atom, hydrogen bonding takes place.

Only a few substances that contain hydrogen can form a hydrogen bond.

The hydrogen bonds in the CH4 molecule are visible.

When a F atom and a hydrogen atom are covalently bound, the hydrogen atom gains a slight positive charge.

Covalent bonds and hydrogen bonds are interchangeable terms.

The interaction known as hydrogen bonding, which involves a hydrogen atom sandwiched between two other atoms with a high affinity for electrons, is stronger than van der Waals forces but weaker than ionic or covalent bonds. Atoms in separate molecules or distinct regions of the same molecule can form hydrogen bonds with one another. A hydrogen atom (FH, NH, or OH) is covalently bound to one of the pair's (the donor) typically fluorine, nitrogen, or oxygen atoms, with which it shares electrons unevenly. As a result of this high electron affinity, the hydrogen gains a little positive charge. The other atom in the pair, which is usually F, N, or O, has an unshared electron pair, giving it a little negative charge.

The donor atom efficiently transfers its hydrogen to the receiver atom by electrostatic attraction, creating a connection. Water (H2O) is liquid over a much wider temperature range than would be anticipated for a molecule of its size due to its extensive hydrogen bonding. Because it quickly forms hydrogen bonds with the solute, water is an excellent solvent for ionic compounds as well as many other types of solutes. A linear protein molecule's ability to fold into its functional configuration depends on the hydrogen bonds formed between the amino acids. The double-helix structure of DNA is essential for the transmission of genetic information. It is created by hydrogen bonds between nitrogenous bases in nucleotides on the two strands of DNA (guanine partners with cytosine, adenine couples with thymine).

To learn more about the, hydrogen bond visit:

https://brainly.com/question/10904296

#SPJ4

The acceleration of the proton is 3681 m/s^2

The term acceleration has to do with the change in the speed of the body with time. We can see here that the proton started from rest and was accelerated to 80.0% of the speed of light in 18 hours, 6 minutes, 45 seconds.

Initial velocity of the proton = 0 m/s (from rest)

Final velocity of the proton = (0.8 * 3 * 10^8 m/s) = 2.4 *  10^8 m/s

Time taken = 18 hours, 6 minutes, 45 seconds or 65205 s

Acceleration = 2.4 *  10^8 m/s -  0 m/s/65205 s

= 3681 m/s^2

Learn more about acceleration:https://brainly.com/question/12550364

#SPJ1

According to the first rule of motion, an object's motion will not alter unless there is a force acting on it.

According to the second law of motion, the amount of force exerted on an object is proportional to the product of the object's mass and its acceleration.

According to the third law, when two things interact with one other, the forces that they apply to each other are of equal magnitude but in opposing directions.

This is further explained below.

Generally, Isaac Newton, as he was formally known, was an English physicist and mathematician who was the leading light of the 17th century's Scientific Revolution. 

Read more about Issac Newton’s Laws

https://brainly.com/question/9102624

#SPJ1

Answer:

look it up

Explanation: